Table 1 Characteristics of studies included in the meta-analyses
Study | N | Positive/negative a | Age | Ethnicity b | Genotyping triallelic | Assessment | |
|---|---|---|---|---|---|---|---|
environment | outcome | ||||||
Bakermans et al. (2012) | 37 | Negative | <10 | Caucasian | No | Observation | Observation |
Benjet et al. (2010) | 78 | Negative | ⩾10 | Mixed | No | Self-report | Self-report |
Brody et al. (2009) | 419 | Positive | ⩾10 | Mixed | No | Observation | Self-report |
Cicchetti et al. (2010) | 850 | Negative | <10 | Mixed | No | Observation | Self-report |
Cicchetti et al. (2011) | 92 | Positive | <10 | Mixed | No | Observation | Observation |
Drury et al. (2012) | 100 | Positive | <10 | Caucasian | No | Observation | Other report |
Eley et al. (2004) | 220 | Negative | ⩾10 | Caucasian | No | Other report | Self-report |
Eley et al. (2011) | 344 | Positive | <10 | Caucasian | No | Observation | Observation |
Fox et al. (2005) | 73 | Positive | <10 | Caucasian | No | Other report | Observation |
Gibb et al. (2011) | 74 | Negative | <10 | Caucasian | No | Observation | Observation |
Gilissen et al. (2008) | 87 | Positive | <10 | Caucasian | No | Observation | Observation |
Hankin et al. (2012) | 220 | Negative | ⩾10 | Mixed | Yes | Other report | Self-report |
Ivorra et al. (2010) | 317 | Negative | <10 | Caucasian | No | Other report | Other report |
Jacobs et al. (2011) | 123 | Negative | ⩾10 | Caucasian | Yes | Other report | Observation |
Kaufman et al. (2004) | 101 | Negative | ⩾10 | Mixed | No | Observation | Self-report |
Kochanska et al. (2011) | 88 | Positive | <10 | Caucasian | No | Observation | Other report |
Luijk et al. (2011) | 512 | Positive | <10 | Caucasian | No | Observation | Observation |
Kumsta et al. (2010) | 64 | Negative | ⩾10 | Caucasian | No | Observation | Other report |
Mueller et al. (2011) | 115 | Negative | <10 | Caucasian | Yes | Self-report | Observation |
Nijmeijer et al. (2010) | 194 | Negative | ⩾10 | Caucasian | No | Other report | Other report |
Nilsson et al. (2005) | 196 | Positive | ⩾10 | Caucasian | No | Self-report | Self-report |
Nobile et al. (2007) | 689 | Negative | ⩾10 | Caucasian | No | Other report | Other report |
Paaver et al. (2008) | 435 | Positive | ⩾10 | Caucasian | No | Self-report | Self-report |
Pauli-Pott et al. (2009) | 69 | Positive | <10 | Caucasian | No | Observation | Observation |
Pluess et al. (2011) | 1513 | Negative | <10 | Caucasian | No | Other report | Other report |
Sadeh et al. (2010) | 296 | Positive | ⩾10 | Mixed | No | Other report | self-report |
Sonuga et al. (2009) | 681 | Positive | ⩾10 | Caucasian | No | Observation | Other report |
Spangler et al. (2009) | 94 | Negative | <10 | Caucasian | No | Observation | Observation |
Sugden et al. (2010) | 1174 | Negative | ⩾10 | Caucasian | No | Self-report | Other report |
Sulik et al. (2012) | 106 | Positive | <10 | Caucasian | No | Observation | Other report |